FREQUENTLY ASKED QUESTIONS
IS THE ICARE MEASUREMENT PAINLESS?
Yes, the measurement is painless. The light-weight probe touches the cornea momentarily and some patients don't even notice the measurement has been taken.
IS IT POSSIBLE TO HURT THE EYE WITH THE ICARE?
If the device is used according to the instructions given in the user manual, the light-weight probe cannot cause any damage to the patient's eye.
IS THE ICARE MEASUREMENT RESULT ACCURATE?
Several independent studies prove the accuracy of Icare readings. Extensive bench testing and clinical studies have also been performed to ensure the accuracy and repeatability of the measurements.
WHY SIX MEASUREMENTS?
Six measurements are required to provide accurate measurement results by eliminating the variations caused by operator error and heart rate.
DOES ICARE TAKE INTO CONSIDERATION CCT?
Icare tonometer is calibrated for average CCT just like the Goldmann tonometer.
CAN ICARE BE USED WITH CONTACT LENSES?
Yes you can take a measurement over soft contact lenses. Depending on the type of lenses the tonometer readings may be affected. Soft disposable lenses (daily, two-week or monthly lenses) affect the reading slightly. Rigid gas permeable contact lenses have a significant effect on the reading and should not be worn when measuring IOP. For the most accurate results, remove contact lenses.
CAN ICARE BE USED AFTER EYE SURGERY?
Yes. Consider some surgeries, e.g. LASIK and similar surgeries, may change the thickness of the cornea (thinner cornea = lower /false IOP).
CAN ICARE BE USED WHEN THE EYE IS INFECTED?
Yes. Remember the probe used to measure the infected eye cannot be used again; even for measuring the non-infected eye of the same patient.
DOES THE CORNEAL SHAPE AND THE RADIUS INFLUENCE IOP READINGS TAKEN WITH THE ICARE?
No. The measurement is not influenced by these aspects due to the small area of the cornea the probe contacts.
CAN ANESTHESIA STILL BE USED?
The Icare tonometer is designed to be used without topical anesthetic. It is possible to measure an anesthetized eye but the readings may be affected by the swelling caused by the topical anesthetic. For accurate measurements, we recommend not to apply an anesthetic when using the Icare tonometer.
IS IT POSSIBLE TO LOAD THE PROBE THE WRONG WAY?
No. Due to the mechanical design of the probe and the probe base it is not possible to load the probe the wrong way.
CAN I RE-USE THE PROBES?
The Icare tonometer uses single-use disposable probes. The probes should never be cleaned or sterilized. That process and handling could damage the probe resulting in unreliable measurements or damage to the tonometer. However, the same probe can be used for measuring the same patient within a reasonable amount of time.
CAN THE SAME PROBE BE USED TO MEASURE BOTH EYES OF ONE PATIENT?
Yes. The same probe can be used to measure both eyes of the patient. If the patient has an infection in one eye, the healthy eye should be measured first. A probe used to measure an infected eye should never be used to measure a healthy eye. When in doubt, always use a new probe.
HOW ARE THE PROBES DISPOSED OF?
Probes can be disposed of according to the hospital/clinic/practice standard regulations. It is not required to be thrown into a sharps disposable container.
DOES ICARE REQUIRE CALIBRATION?
Icare tonometers do not require any maintenance, calibration or regular service. The tonometers do not have parts that wear out. However, the probe base can become dusty or collect some particles that affect the probe movement. The probe base can be changed by the user as described in the user manual. If there is any doubt about the measurement results, the calibration can be verified by the service department. In such a case, you should contact the service department or your local representative.